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For more information, visit www.desatech.com

 

WARNING: If the information in this manual is not 

followed exactly, a fire or explosion may result causing 
property damage, personal injury or loss of life.

—  Do  not  store  or  use  gasoline  or  other   flammable 

vapors and liquids in the  vicinity of this or any other 

appliance.

—  WHAT TO DO IF YOU SMELL GAS

•  Do not try to light any appliance.
•  Do not touch any electrical switch; do not use any 

phone in your building.

•  Immediately call your gas supplier from a neighbor’s 

phone. Follow the gas supplier’s instructions.

•  If you cannot reach your gas supplier, call the fire 

department.

—  Installation and service must be performed by a quali

-

fied installer, service agency or the gas supplier.

INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.

Models (V)QM36(sr,sI,Hr,HI), VCM-36Q, (V)QM42(sr,sI,Hr,HI), 

VCM-42Q, (V)QM50(sr,sI,Hr,HI), VCM-50Q

resIdeNTIAl ANd oUTdoor  

UNVeNTed (VeNT-Free) UNIVersAl FIreBoX

oWNer’s oPerATIoN ANd INsTAllATIoN MANUAl

Summary of Contents for QM36 Series

Page 1: ...trical switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a quali fied installer service agency or the gas supplier INSTALLER Leave this manual with the appliance CONSUMER Retain this manual for future refe...

Page 2: ...o not install the appliance in this firebox unless this firebox meets the minimum dimen sions required for the installation WARNING For use only with a listed gas fired unvented decorative room heater not to exceed 40 000 Btu H Do not build a wood fire Safety This appliance may be installed in an aftermarket permanently located manufactured mobile home where not prohibited by local codes Aftermark...

Page 3: ...eens are closed before runninginstalledgaslogheater Replace hood with DESA Heat ing LLC model 109511 01 50 109511 02 42 or 109511 03 36 only This hood has been designed to keep the opera tion of your fireplace safe and efficient 1 Do not use this firebox as a wood burning fireplace Use only decorative unvented room heaters log sets 2 Do not add extra logs or ornaments such as pine cones vermiculit...

Page 4: ...ting Firebox Planning Plan where you will install the firebox This will save time and money later when you install the firebox Before installation consider the following 1 Where firebox will be located Allow for wall and ceiling clearances see Installa tion Clearances page 11 2 Everything needed to complete installation 3 These models CANNOT be installed in a bedroom unless maximum Btu rating of i...

Page 5: ...ct Specifications 36 Models V QM36 Series and VCM 36Q Figure 1 36 Models V QM36 Series and VCM 36Q 30 1 2 29 30 11 1 8 54 1 2 7 7 8 7 36 45 1 8 35 16 97 16 50 365 16 7 3 8 111 8 36 HEARTH 1 5 16 19 13 16 Ref 34 3 4 22 18 3 8 3 3 4 4 7 8 ...

Page 6: ...ifications Continued 42 Models V QM42 Series and VCM 42Q Figure 2 42 Models V QM42 Series and VCM 42Q 4 7 8 54 1 2 7 7 8 7 36 5 16 50 42 51 1 8 32 3 8 3 3 4 30 5 16 8 3 4 13 3 5 16 9 7 16 30 11 1 8 23 13 16 Ref 1 5 16 40 3 4 25 22 1 2 42 HEARTH ...

Page 7: ...cifications Continued 50 Models V QM50 Series and VCM 50Q Figure 3 50 Models V QM50 Series and VCM 50Q 365 16 50 8 3 4 13 35 16 97 16 23 13 16 Ref 1 5 16 33 40 3 4 22 1 2 50 HEARTH 59 1 8 50 7 7 8 7 30 54 1 2 11 1 8 32 3 8 3 3 4 38 5 16 4 7 8 ...

Page 8: ...t to determine if you have a confined or unconfined space Space Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms WARNING This heater shall notbeinstalledinaroomorspace unlesstherequiredvolumeofin door combustion air is provided by the method described in the National Fuel Gas Code ANSI Z223 1 NFPA54 theInt...

Page 9: ...cause the actual Btu Hr used is more than the maximum Btu Hr the space can support You must provide additional fresh air Your options are as follows A Rework worksheet adding the space of an adjoining room If the extra space provides an unconfined space remove door to adjoining room or add ventilation grills between rooms See Ventilation Air From Inside Building B Vent room directly to the outdoor...

Page 10: ...es next to firebox Installing firebox next tovinylorclothwallcoveringsor operating firebox where impuri ties suchas butnotlimitedto to bacco smoke aromatic candles cleaning fluids oil or kerosene lamps etc in the air exist may discolor walls or cause odors Installation NOTICE The firebox identifica tionlabel includingmodelnum ber serial number clearances etc is located on a chain under the bottom ...

Page 11: ...tel above built in fire box you must meet the minimum allowable clearance between mantel shelf and top of firebox opening shown in Figure 7 These are the minimum allowable mantel clearances for a safe installation Use larger clearances wherever possible to minimize the heating of objects and materials placed on the mantel CAUTION Do not allow the vent freegaslogheatertotouch or extend beyond the f...

Page 12: ... insert firebox into rough opening 5 Attach firebox to wall studs using nails or wood screws through holes in nailing flange see Figure 10 6 Install and properly test gas log heater Follow installation instructions included with the vent free gas log heater that is being installed IMPORTANT When finishing your firebox combustible materials such as wall board gypsum board sheet rock drywall plywood...

Page 13: ...our home The firebox and cabinet mantel can be installed directly on the floor Mantels may be avail able from your retailer or custom built for your home 1 Assemble cabinet mantel as instructed 2 Install gas piping to firebox location See Installing Gas Line page 14 You may have to cut an access hole in the floor or wall to run gas line to firebox Make sure to locate access hole so cabinet mantel ...

Page 14: ...ed 4 Using self tapping screws and a drill place screws into large holes in back and side panels see Parts page 30 through wire mesh and into firebox wrapper to secure Figure 14 Hole in Side Panel to Attach to Firebox Wrapper Hole in Side Panel Figure 15 Installing Bricks into Brick Housings Installation Continued Brick Installation Each brick housing is stamped with a number full size bricks are ...

Page 15: ...F126 F126 F124 F123 F133 F011 Ash Brick 42 Hearth 36 Hearth RED IVORY QTY FULL 112140 01 FULL 112140 05 13 ASH BRICK 120848 01 ASH BRICK 120848 03 1 F011R F011W 1 F059R F059W 4 F123R F123W 2 F124R F124W 2 F126R F126W 2 F132R F132W 2 F133R F133W 2 Includes 2 extra bricks RED IVORY QTY FULL 112140 01 FULL 112140 05 11 ASH BRICK 120848 01 ASH BRICK 120848 03 1 F012R F012W 2 F124R F124W 2 F125R F125W ...

Page 16: ... 112140 05 7 F036R F036W 3 F143R F143W 2 F144R F144W 1 F147R F147W 1 F148R F148W 2 F158R F158W 3 F185R F185W 1 F191R F195W 1 F192R F192W 1 F148 F148 FULL FULL FULL FULL FULL F036 F036 F036 F158 F143 F143 F144 F158 F158 F192 FULL FULL F148 F148 FULL FULL FULL FULL FULL F036 F036 F036 F158 F143 F143 F144 F158 F158 F185 or F191 F185 or F191 F192 FULL FULL F147 F147 F153 F152 FULL FULL FULL FULL FULL ...

Page 17: ...7R F017W 1 F032R F032W 3 F033R F033W 3 F143R F143W 3 F151R F151W 1 F155R F155W 1 F156R F156W 1 F158R F158W 2 F186R F186W 1 F190R F190W 1 F155 F017 FULL FULL F032 FULL F033 F158 FULL FULL F032 FULL F033 F158 FULL FULL F143 F143 F143 F033 F151 F032 F156 F155 F017 FULL FULL F032 FULL F033 F158 FULL FULL F032 FULL F033 F158 FULL FULL F143 F143 F143 F033 F151 F190 or F186 F190 or F186 F032 F156 F157 F0...

Page 18: ...4R F144W 1 F145R F145W 1 F146R F146W 1 F147R F147W 1 F148R F148W 2 F149R F149W 1 F158R F158W 3 F191R F191W 1 F192R F192W 1 F148 F149 F148 FULL FULL FULL F032 F033 F158 F143 FULL FULL FULL F032 F033 F033 F158 FULL F032 F158 F143 F144 F147 F147 F148 F149 F148 FULL FULL FULL F032 F033 F158 F143 FULL FULL FULL F032 F033 F033 F158 FULL F032 F158 F143 F144 F145 or F191 F145 or F191 F146 or F192 F146 or ...

Page 19: ... FULL 112140 01 FULL 112140 05 3 F068R F068W 4 F071R F071W 1 F072R F072W 1 F074R F074W 2 F110R F110W 3 F112R F112W 1 F120R F120W 4 F122R F122W 4 F180R F180W 1 F181R F181W 1 F188R F188W 1 F 1 2 0 F 1 2 0 F 1 2 0 F 1 2 0 F 0 7 2 F 0 6 8 F 0 6 8 F 0 6 8 F 0 6 8 F U L L F U L L F U L L F 1 1 2 F 1 1 0 F 1 1 0 F 1 1 0 F122 F 1 8 0 F181 or F071 F 1 8 8 F074 F074 F122 F122 F122 F U L L F U L L F U L L F ...

Page 20: ...05 9 F071R F071W 4 F068R F068W 1 F072R F072W 2 F074R F074W 1 F100R F100W 3 F101R F101W 1 F162R F162W 1 F164R F164W 1 F165R F165W 1 F174R F174W 1 F U L L F 0 7 2 F 1 6 3 F175 or F182 F 1 6 9 F 0 6 4 F 0 6 4 F 0 6 4 F 0 6 4 F120 F 0 6 8 F074 F074 F 0 7 2 F U L L F U L L F U L L F U L L F U L L F 0 6 8 F 0 6 8 F 0 6 8 F120 F120 F120 F176 F177 F U L L F 0 6 3 F 0 6 8 F 0 7 2 F171 F 0 7 2 F 0 7 2 F 0 7...

Page 21: ...2R F072W 1 F074R F074W 2 F083R F083W 3 F084R F084W 4 F085R F085W 1 F093R F093W 1 F166R F166W 1 F167R F167W 1 F172R F172W 1 F173R F173W 1 F183R F183W 1 F U L L F 0 7 2 F 1 6 3 F175 or F182 F 1 6 9 F 0 6 4 F 0 6 4 F 0 6 4 F 0 6 4 F120 F 0 6 8 F074 F074 F 0 7 2 F U L L F U L L F U L L F U L L F U L L F 0 6 8 F 0 6 8 F 0 6 8 F120 F120 F120 F176 F177 F U L L F U L L F U L L F168 F168 F 0 8 9 F 0 6 3 F ...

Page 22: ...RY QTY FULL 112140 02 FULL 112140 06 17 S048R S048W 12 S049R S049W 10 S051R S051W 1 S052R S052W 2 FULL S048 S048 S048 S048 S048 S048 S048 S048 S048 S048 S048 S048 FULL FULL S049 S049 S049 S049 S049 S049 S049 S049 S049 S049 FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL S052 S051 S052 FULL FULL S047 S046 S046 S050 S046 S046 S046 S046 FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FU...

Page 23: ...S077R S077W 6 S081R S081W 1 S082R S082W 1 FULL S077 S076 S046 S050 S046 S046 S046 S046 S077 S076 S077 S076 S077 S076 S077 S076 S077 S076 FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL S080 S045 or S081 FULL FULL FULL S050 S050 S050 S050 S050 FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL S051 S076 S077 S076 S077 S076 S077 S076 S077 S076 S077 S076 ...

Page 24: ...140 06 28 S048R S048W 12 S049R S049W 10 S051R S051W 2 S052R S052W 2 FULL S048 FULL FULL FULL S049 S048 S049 S048 S049 S048 S049 S048 S048 S048 S048 S048 S048 S048 S048 S049 S049 S049 S049 S049 S049 S052 S051 S051 S052 FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL FULL RIGHT REFRACTORY RED IVORY QTY FULL 112140 02 FULL 112140 06 1...

Page 25: ...R S059W 1 S061R S061W 1 S062R S062W 1 S090R S090W 1 S091R S091W 1 F071R F071W 1 F120R F120W 1 F129R F129W 1 F U L L S 0 0 2 F U L L S 0 0 4 S 0 0 1 S 0 0 1 S 0 9 1 S 0 1 4 S 0 1 4 S 0 1 4 S 0 1 4 S 0 1 4 S 0 1 4 F 0 7 1 S003 S003 F U L L F U L L F U L L F U L L F U L L F U L L F U L L F U L L F U L L S 0 1 5 S 0 6 1 S 0 1 4 S 0 1 4 S 0 1 4 S 0 1 4 S 0 1 4 S 0 1 4 S 0 9 0 S 0 6 2 F129 F U L L S 0 5...

Page 26: ...4 S 0 7 4 S 0 7 4 S 0 7 4 S 0 7 4 S 0 7 4 S 0 0 2 S 0 0 2 S003 S003 F120 F129 RIGHT REFRACTORY RED IVORY QTY FULL 112140 02 FULL 112140 06 18 S001R S001W 2 S002R S002W 8 S003R S003W 2 S004R S004W 2 S065R S065W 1 S074R S074W 1 S086R S086W 1 S089R S089W 8 S092R S092W 1 S093R S093W 1 S094R S094W 1 S104R S104W 1 F054R F054W 2 F U L L S 0 8 6 S 0 0 2 S 0 0 2 S 0 0 2 S 0 0 2 S 0 0 2 S 0 0 2 S 0 0 2 S 0 ...

Page 27: ... 4 S 0 0 1 S003 F120 S093 or S099 F130 F U L L S 0 0 2 F U L L F U L L F U L L S 0 9 8 S 0 9 7 S 0 9 7 S 0 9 7 S 0 9 7 S 0 9 7 S 0 9 7 F 1 3 7 F U L L F U L L F U L L F U L L F U L L F U L L F U L L F U L L F U L L F U L L S 1 0 5 F U L L S 1 0 6 F U L L S 0 6 7 S 0 0 7 S 0 0 7 S 0 0 7 S 0 0 7 S 0 0 7 S 0 0 7 S 0 0 7 S 0 0 7 S003 F U L L F U L L S 0 0 6 S 0 0 6 S 0 0 6 S 0 0 6 S 0 0 6 S 0 0 6 F U ...

Page 28: ...mixture It is important to work with only 6 bricks at a time so grout doesn t have time to set up before striking 6 Complete a Finishing Pass around 6 bricks you just put filler pass around This is done by slowly filling in remainder of the joint with a thick amount of grout mixture Mixture should be a little higher than the brick surface 7 Using a trowel remove excess grout mix ture by moving tro...

Page 29: ...visit DESA Heating LLC s web site at www desatech com Replacement Parts Note Use only original replacement parts This will protect your warranty coverage for parts replaced under warranty Parts Under Warranty Contact authorized dealers of this product If they can t supply original replacement part s call DESA Heating LLC at 1 866 672 6040 When calling DESA Heating LLC have ready your name your add...

Page 30: ...h com 122275 01F 30 Parts Models V Qm36 Sr SI HR HI VCM 36Q V Qm42 Sr SI HR HI VCM 42Q V Qm50 Sr SI HR HI VCM 50Q 13 12 13 15 16 17 18 16 19 5 4 23 3 21 22 19 24 26 26 25 1 6 7 16 17 18 15 14 13 11 9 8 10 20 2 14 ...

Page 31: ...eplace Top 50 1 11 23490SA Standoff 4 12 Fireplace Surround Assembly 1 13 109720 02 Clearance Spacer 6 14 117891 01 Fireplace Handle Bracket 4 15 20042 Outside Air Cover Plate 2 16 21171 Gas Conduit Cover 4 17 109752 01 Conduit One 2 18 109752 02 Conduit Two 2 19 20106 Nailing Strap 6 20 Heat Shield Support 1 21 123298 01 Ash Box Assembly 1 22 Ash Box Ring 1 23 Hearth Support Brace 1 24 109511 04 ...

Page 32: ...42 Split Herringbone Left 1 120845 03 50 Split Herringbone Left 1 120843 01 36 Split Stack Right 1 120843 02 42 Split Stack Right 1 120843 03 50 Split Stack Right 1 120846 01 36 Split Herringbone Right 1 120846 02 42 Split Herringbone Right 1 120846 03 50 Split Herringbone Right 1 120844 01 36 Split Stack Rear 1 120844 02 42 Split Stack Rear 1 120844 03 50 Split Stack Rear 1 120847 01 36 Split Her...

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Page 36: ...pproved by DESA Heating LLC Warranty parts must be obtained through authorized dealers of this prod uct and or DESA Heating LLC who will provide original factory replacement parts Failure to use original factory replacement parts voids this warranty Travel handling transportation diagnostic material labor and incidental costs associated with warranty repairs unless expressly covered by this warran...

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